What!? WHEN EXACTLY? lol how'd it happened? Please would you mind spoiling us a bit
Spoiler (pls note I just skimmed through it and understand a little bit)
So basically the brown hair guy and the bird met the sorcerer or something and I think the bird was trying to protect the guy and the sorcerer kinda changed the bird into his real form, saying hes actually from a "beastman" (I forgot the name) kinda species. It happened in chapter 18, so you have to wait for a while.
The duke was gentle with him and treated him after he fell unconscious and the bird is still a himbo
We'll see him in human form soon and since all of his hair is white, he really thought he turned into an old man